Mo. Rev. Stat. § 324.270
A person who does not hold a license to practice massage therapy or a license to operate a massage business or is not exempted from obtaining a license pursuant to subsection 7 of section 324.265 shall not use the words "massage", "body work", or any of their synonyms on any sign or in any other form of advertising, unless specifically exempted by the board. Any advertisement by a massage therapist or a massage business shall contain the license or registration number of such therapist or business.
(L. 1998 H.B. 1601, et al.)